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第一个阶段:入门这个阶段你的任务是掌握C++语言,学会最基本的代码编写能力,在这具阶段你主要是做水题,就是不需要算法,自己动脑能夠实现在题目,经过这种题目的训练,你能夠入门,学会了使用C++的语言和基本的计算机思维能力.题目量:30-50.
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        <h2 id="如何学习"><a href="#如何学习" class="headerlink" title="如何学习"></a>如何学习</h2><p>noip 学习的过程是一个<strong>学习算法</strong>的过程,同时也是<strong>练习题目</strong>的过程</p>
<h4 id="第一个阶段-入门"><a href="#第一个阶段-入门" class="headerlink" title="第一个阶段:入门"></a>第一个阶段:入门</h4><p>这个阶段你的任务是<strong>掌握</strong>C++语言,学会最基本的代码编写能力,在这具阶段你主要是做<strong>水题</strong>,就是不需要算法,自己动脑能夠实现在题目,经过这种题目的训练,你能夠入门,学会了使用C++的语言和基本的计算机思维能力.题目量:<strong>30-50</strong>.</p>
<p>题目列表: 待加入</p>
<h4 id="第二阶段-算法入门"><a href="#第二阶段-算法入门" class="headerlink" title="第二阶段:算法入门"></a>第二阶段:算法入门</h4><p>在这个阶段你会学会基本的算法:</p>
<ul>
<li>排序<ul>
<li>冒泡排序</li>
<li>桶排序</li>
<li>插入排序</li>
<li>选择反序</li>
<li><strong>归并排序</strong> 逆序对</li>
<li><strong>快速排序</strong> 最学用</li>
<li>使用c++内部的sort</li>
</ul>
</li>
<li>简单搜索<ul>
<li>BFS</li>
<li>DFS</li>
<li>剪枝</li>
</ul>
</li>
<li>简单贪心</li>
<li>hash</li>
<li>gcd</li>
<li>任意进制转换</li>
<li>高精度</li>
<li>二分查找</li>
<li>简单的数据结构</li>
</ul>
<p>题目量:<strong>100-150</strong></p>
<h4 id="第三个阶段-更深入的算法和数据结构"><a href="#第三个阶段-更深入的算法和数据结构" class="headerlink" title="第三个阶段:更深入的算法和数据结构"></a>第三个阶段:更深入的算法和数据结构</h4><p>上面的是入门的学习,经过上面的学习你已经形成的计算机思维方式(或者IOER思维方式),和普通的同学的之间形成了不同的思考模型(^_^!),下面会学习更深的算法.</p>
<ul>
<li>搜索<ul>
<li>双向BFS</li>
<li>A*</li>
</ul>
</li>
<li>动态规化<ul>
<li>经典题目:LCS等</li>
<li>背包</li>
<li>树上DP</li>
<li>等各种变形题目</li>
</ul>
</li>
<li>树<ul>
<li>最小树</li>
<li>树的存入与遍历</li>
<li>trie树</li>
<li>二叉查找树</li>
<li>等</li>
</ul>
</li>
<li>图<ul>
<li>图的存入与遍历:dfs,BFS</li>
<li>最短路</li>
<li>floyd</li>
<li>bellman</li>
<li>dijstra</li>
<li>spfa</li>
<li>割点</li>
<li>二分图匹配</li>
</ul>
</li>
<li>简单的组合数学与数论知识</li>
<li>STL学习<ul>
<li>vector</li>
<li>deque</li>
<li>list</li>
<li>stack</li>
<li>priority_queue</li>
<li>map</li>
<li>set</li>
<li>algorithm 算法</li>
</ul>
</li>
</ul>
<p>题目量:<strong>300-500</strong></p>
<h4 id="第四个阶段-小成"><a href="#第四个阶段-小成" class="headerlink" title="第四个阶段:小成"></a>第四个阶段:小成</h4><p>上面的阶段都是打基础,学到最后前面所有的算法只是你手中的工具,在你实际解题的过程中,看出使用的什么算法的题<strong>都是水题</strong>,真正的题目解法是在一个时限内YY(意淫)出新的解法或者做一个畸形的变化转成一个有固定解的模型.这个时候你就会说:自己的大脑才是最强的算法工具.</p>
<p>在这个阶段,上面所有学过的算法(sensai有写的一个代码大全模版,制作中),打<strong>10-20</strong>遍,每个都透彻的理解,最后即使闭上眼也能打出来.</p>
<p>可以分类自己写的所有题目.</p>
<p>50行以下的代码,不用debug,可以心算找出错误. 100行以下的代码,2分钟debug.</p>
<p>写题目不在纠结算法,主要的时间放在想题解法是,能想出来,就能快速写出代码,快速构造数据,自己测试,优化.</p>
<h4 id="第五个阶段-free"><a href="#第五个阶段-free" class="headerlink" title="第五个阶段: free"></a>第五个阶段: free</h4><p>到了第四个阶段,你已经至少一个能不停走向更强的OIER,or,ACMER.</p>
<p>如果不在作为一个OIER,or,ACMER后,你能做什么?. 想学习其它的方面的知识,转向计算机体系的其它方面:逆向,加密,单片机,UI,WEB,server,—-等等.</p>
<p>上面的学习中最重要是你走完了这一条OIER道路,学会了运用思维,完善自我的过程.我相信你已经能达到<strong>自我学习</strong>,<strong>自我训练</strong>的程度.想转向其它的方面,都很简单,简单在于你已经知道如何去运用自我的思维.(一切以抺杀人学习能力的教育都是耍流氓,教育是培养学习能力,不是灌输)</p>
<p>有了计算机思维,学习计算机其它方面都不是很难:都是找资料–&gt;看资料—&gt;运用的过程</p>
<p>最后:<strong>学习英语真的很重要</strong>.</p>
<p><a href="https://www.zhihu.com/question/26677313" target="_blank" rel="external">你有什么相见恨晚的英语学习方法？</a></p>
<h2 id="说明"><a href="#说明" class="headerlink" title="说明:"></a>说明:</h2><p>本文档还在完善中——-<br><a href="http://hzwer.com/1234.html" target="_blank" rel="external">http://hzwer.com/1234.html</a></p>

      
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